QU120 Rail for Extreme-Duty Crane Systems
Product Overview
QU120 rail is a premium crane rail profile developed for extreme-duty lifting systems, where wheel loads, impact forces, and service cycles exceed the limits of conventional QU series rails.
With its 120 mm rail head and reinforced web geometry, QU120 rail is engineered to maintain structural stability, alignment accuracy, and surface integrity under continuous heavy operation. It is particularly suited for mega gantry cranes, ship-to-shore cranes, steel mill cranes, and bulk material handling systems, where downtime is costly and safety margins are non-negotiable.
Manufactured in accordance with YB/T 5055-2014, GlorySteelWork supplies QU120 crane rails for projects that demand maximum load tolerance and long-term operational reliability.
QU120 Rail Material & Sizes
QU120 Rail Profile & Key Dimensions
The QU120 cross-section is optimized for large crane wheels and concentrated loads, ensuring balanced stress transfer from wheel to foundation.
| Type of Rail | Standard | Dimensions mm | Steel Grade | Mass M | |||
| Height | Base Width | Head Width | Web Thickness | kg/m | |||
| QU120 RAIL | YB/T5055-2014 | 170 | 170 | 120 | 44 | U71Mn | 118.1 |
Rail Length Options：
Standard length: 6–12 m (customized lengths available)
Detailed dimension drawings and tolerance data can be provided for engineering verification and layout planning.
QU120 Crane Rail Materials
QU120 rails are produced using U71Mn high-carbon rail steel, selected specifically for high wheel pressure, frequent impact loading, and fatigue-intensive environments. For special applications, higher-strength or project-specific steel grades can be customized to meet unique load, wear, or service-life requirements.
| U71Mn | Mechanical Property | Chemical Composition | ||||||||||||
| Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | Cr | Ni | Cu | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
| ≥880 | 9% | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | 0.030 | 0.030 | 0.25 | 0.25 | 0.25 | |||||
Material advantages include:
- High tensile strength and resistance to plastic deformation
- Excellent wear resistance under large-diameter crane wheels
- Strong fatigue performance for long service cycles
- Stable hardness distribution for predictable rail head behavior
- Through controlled rolling and cooling processes, the steel achieves a consistent internal structure that supports long-term track stability under extreme loads.
QU120 Crane Rail Supply from China
GlorySteelWork supplies QU120 rail for sale as part of complete crane rail systems, supporting both standard supply and project-based customization.
Supply capabilities include:
- Factory-direct production with quality traceability
- Stable stock for urgent project schedules
- Custom length cutting and short rail fabrication
- End machining, bevel cuts, and joint preparation
- Optional surface protection for outdoor, coastal, or corrosive environments
Our goal is not just to ship steel rails—but to deliver installation-ready crane track solutions.
QU120 Rail Export and Container Loading
Get in Touch
Talk to a QU120 Crane Rail Specialist. Contact GlorySteelWork with your crane type, wheel load, operating conditions, and required rail lengths. Our technical team will help you confirm specifications and provide a tailored quotation.